Pigment deposition seen in poorly buffered formalin is best described as:
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Correct answer: Formalin pigment
Formalin pigment is an artifact seen with acidic formalin fixation. It appears as dark brown granular deposits and is not a true endogenous pigment.
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More Artifacts in Histology questions
- Which artifact is most commonly caused by delayed fixation of tissue specimens?
- Tissue shrinkage during processing is most often due to:
- Knife lines seen across a histologic section are typically caused by:
- Formalin pigment (acid hematin) is most likely to appear in tissues fixed with:
- Tissue folds observed in a section are most commonly due to:
- Air bubbles trapped under the coverslip are classified as: